内燃机充量系数是指内燃机每循环实际吸入气缸的新鲜充量与以进气管内状态充满气缸工作容积的理论充量的比值。
参考答案:对
Although the wind has _____, the rain remains steady. so you still need a raincoat.[ ]
A. turned up
B. gone back
C. died down
D. blown out
下述程序段的执行结果是( )。 #include <stdio.h> Void main() int x; for(x=1;x<=100;x++) if(++x%3==0) if(++x%4==0) if(++x%7==0) printf("%d",x);
A.75
B.76
C.77
D.84